I know the !alkoff MDC AA has been mentioned, as well as the low being really low. I thought the same, even though I absolutely like the medium and high, plus the fact that it throws better than any AA I am aware of. I wasn’t happy with the sub-lumen low, but stumbled on an easy fix that boosts the low more to a level of my liking.
I am operating it using the 2.4vdc 14500 that Olight sells for the i5r light. Using that battery, the MDC AA low is significantly higher (best guess between 1-2 lumens) and suits my needs much better. With that battery, the MDC AA is certainly in contention as one of the best outdoor EDC AAs.